During the installation of Oracle RAC 10g Release 2, OUI needs to copy files to and execute programs on the other nodes in the cluster. In order to allow OUI to do that, you must configure SSH to allow user equivalence. Establishing user equivalence with SSH provides a secure means of copying files and executing programs on other nodes in the cluster without requiring password prompts.

To check status

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racdev01:/opt/oracle: svcs -v ssh

STATE NSTATE STIME CTID FMRI

online – Jan_26 60 svc:/network/ssh:default

ps -ef | grep sshd

svcadm enable ssh
svcadm restart ssh

svcs -av | grep ssh

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1) racdev01

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1) cd $HOME

mkdir .ssh

cd ~/.ssh

2) chmod 700 ~/.ssh

racdev01:/opt/oracle: ls -altr

drwx—— 2 oracle dba 512 Feb 7 05:28 .ssh

3) racdev01:/opt/oracle/.ssh: ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/opt/oracle/.ssh/id_rsa): <Just press Enter>

Enter passphrase (empty for no passphrase): <Just press Enter>

Enter same passphrase again: <Just press Enter>

Your identification has been saved in /opt/oracle/.ssh/id_rsa.

Your public key has been saved in /opt/oracle/.ssh/id_rsa.pub.

The key fingerprint is:

91:14:28:32:6f:a8:f1:eb:0a:61:a0:24:ba:48:e3:88 oracle@racdev01

Note: While asking for path and passphrase just press enter thrice above

4) racdev01:/opt/oracle/.ssh: ssh-keygen -t dsa

Generating public/private dsa key pair.

Enter file in which to save the key (/opt/oracle/.ssh/id_dsa): <Just press Enter>

Enter passphrase (empty for no passphrase): <Just press Enter>

Enter same passphrase again: <Just press Enter>

Your identification has been saved in /opt/oracle/.ssh/id_dsa.

Your public key has been saved in /opt/oracle/.ssh/id_dsa.pub.

The key fingerprint is:

1c:8a:65:4c:ec:e5:4e:2f:72:0e:52:6e:6b:6b:26:1c oracle@racdev01

Note: While asking for path and passphrase just press enter thrice above